Description:
Product Name: Sodium Aluminate
EINECS No.: 215-100-1
MF: Na2Al2O4
CAS No.: 1302-42-7
Characteristics:
White powder, hygroscopic, readily soluble in water. The aqueous solution may absorb CO2 and form aluminum hydroxide precipitate. Addition of NaOH is required to increase stability.
Technical Data:
| Item | Index | ||
| Appearance | White Powder | ||
| NaAlO2(%) ≧ | 85 | 80 | 56 |
| AL2O3(%) ≧ | 53 | 50 | 35 |
| Na2O(%) ≧ | 38 | 38 | 27 |
| Molar Ratio | 1.2 | 1.3±0.5 | 1.3±0.5 |
| Fe,ppm ≤ | 200 | 150 | 50 |
| PH ≧ | 12 | 12 | 12 |
| Water insoluble matter ≤ | 1 | 0.5 | 0.1 |
Application:
Oilfield: Drilling mud and lost circulation additives;
Concrete engineering: Used in combination with water glass as concrete adhesive; concrete solidifying agent, promotes concrete solidification.
Papermaking: Used in combination with aluminum sulfate as filling agent.
Water treatment: Flocculant aid, reduces water hardness and accelerates floc settling.
Petrochemical: catalyst or catalyst carrier, coating primer.
Others: Used in textile, dye/printing, pharmacy, rubber, detergent, metal surface treatment.